Eagle Sauce: The 055 destroyer was launched into the sea just after the founding of the country?

A week later, the temporary hangar on the outskirts of the imperial capital was converted into a dedicated engine research and development center.

Inside the hangar, several large lathes, milling machines and precision processing equipment are neatly arranged, and workers are concentrating on their work at each workstation.

Fang Yu stood in front of the design table in the center, with a huge engine structure diagram spread out in front of him.

This is his drawing based on the Taihang WS-10 turbofan engine in his future memory.

To become the heart of the fourth-generation aircraft, the engine installed on the JF-4 is far from enough.

Therefore, Fang Yu spent a considerable amount of technology points and directly exchanged them for the manufacturing technology and drawings of WS10.

"Team Leader Fang, are you sure this design is feasible?"

Chief engine designer Xu Gong walked up to Fang Yu with a frown on his face.

"We have never seen this kind of inlet and compressor structure before."

"According to existing aerodynamic theory, the efficiency cannot be as high as you calculated."

Fang Yu did not answer immediately, but lightly ran his fingers across the turbine blade design on the drawing.

In the future, the biggest pain point of the Taihang engine will be the high temperature resistance of the turbine blades.

Solving this problem now and in advance can save decades of detour.

"Xugong, traditional theory has its limitations,"

Fang Yu raised his head and spoke in a firm voice.

“We need to break the mold.”

"This twin-rotor design can significantly improve the thrust-to-weight ratio and improve fuel efficiency by at least 30% compared to existing engines."

“The problem is the material,”

Professor Wang, a materials expert, interjected, holding a metal alloy analysis report in his hand.

“The operating temperature of the high-pressure turbine blades you designed needs to reach above 1600°C, but our existing nickel-based alloys can only withstand a maximum of 1100°C. This gap is too large.”

Fang Yu nodded. This was exactly the first technical difficulty he had expected.

He walked to the materials cabinet in the corner of the laboratory and took out a small box containing several metal samples.

"This is a new type of high-temperature alloy I designed. It contains elements such as cobalt, titanium, and rhenium, and is manufactured using directional solidification technology. Theoretically, it can withstand temperatures as high as 1700°C."

Fang Yu handed the sample to Professor Wang.

“The problem is, we need a completely new casting process.”

For the next two weeks, the lab was lit up all night.

Fang Yu led the team to conduct repeated experiments in order to overcome the difficulty of high-temperature alloy casting.

Every day, the high-temperature metal at 1500℃ in the furnace flows like magma, and the workers wear heat-insulating clothing and operate carefully in the heat wave.

After more than ten failures, tiny cracks or air holes always appeared on the turbine blades, making them unable to meet the requirements for use under extreme conditions.

"This won't work," Fang Yu wiped the sweat from his forehead, his eyes bloodshot. "We need more precise temperature control and a purer metal substrate."

In the eighteenth experiment, Fang Yu introduced vacuum directional solidification technology. By controlling the crystal growth direction during alloy solidification, he successfully cast a single crystal blade sample without grain boundaries.

When this seemingly ordinary piece of metal remained structurally stable at a high temperature of 1650°C, cheers broke out in the laboratory.

“It’s incredible!”

Professor Wang held up the test report, his hands shaking.

"This material even surpasses the performance of the most advanced alloys in the United States!"

After solving the material problem, Fang Yu turned to the second hurdle: compressor efficiency.

Traditional axial flow compressors are prone to stall and surge under high load and high Mach number conditions, which seriously limits the performance of the engine.

“We need a completely new blade geometry,”

Fang Yu repeatedly calculated the fluid dynamics model in the design studio late at night.

“The existing straight blade design could not meet the requirements.”

Professor Su shook his head. "Team Leader Fang, the three-dimensional twisted blade you proposed is too complex. Our processing equipment simply cannot produce such a precise surface."

Fang Yu fell into deep thought. This was a question he had not expected.

In the future, CNC machining technology will be able to easily achieve complex surfaces, but in the 60s, this was almost an impossible task.

We need to find another way.

Fang Yu stared at the design drawing, and suddenly an idea came to him.

“We can cast it in sections and then weld it with precision!”

He tapped the table excitedly.

"Each segment can be cast using existing technology and then assembled into a complete three-dimensional twisted blade using a special welding technique."

This bold idea sparked heated debate, and finally, after a month of testing, the three-dimensional twisted blades envisioned by Fang Yu were successfully realized using electron beam welding technology.

Wind tunnel tests show that the newly designed compressor has a 23% increase in efficiency and a significantly expanded stable operating range.

However, the third and most daunting hurdle soon emerged: the engine control system.

Modern turbofan engines require precise control of fuel supply, turbine speed and nozzle area to adapt to various flight conditions.

"Electronic computers are too large to fit on an airplane,"

Electronics engineer Director Zhang pointed out the biggest obstacle.

“Mechanical hydraulic control systems can’t achieve the necessary accuracy and response speed. It’s a dead end.”

Fang Yu stood in front of the window, looking at the moonlight outside.

The future FADEC full authority digital electronic control system is still too far away and a transitional solution is needed.

He turned around and quickly drew a structural diagram of a hybrid system on the blackboard.

"We can combine mechanical regulation with simplified electronic control,"

Fang Yu explained, "The core parameters are controlled by small onboard electronic equipment, while the remaining parameters rely on a modified mechanical hydraulic system."

“This is not the most advanced solution, but it is sufficient to meet the needs of the J-20…”

In this way, Fang Yu and other team members are constantly discovering and solving problems.

After three months of working day and night.

When the WS-10 prototype fired up for the first time on the test stand, the roar shook the entire hangar.

Blue flames spurted out from the tail nozzle, and the pointer of the power meter climbed steadily, finally stopping at the expected value.

Fang Yu looked at this engine that had condensed countless efforts, his eyes gleaming with pride...

Dragon Country's first WS10 high-performance turbofan engine has finally been completed...